Home / 387,026.15-534,174.70-223,689.60

Finding the Fourth Proportional to 387,026.15, 534,174.70 and 223,689.60

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Solution

The fourth proportional to 387,026.15, 534,174.70 and 223,689.60 is: 308,737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,026.15 : 534,174.70 = 223,689.60 : x
  2. Step 2: Convert to fraction form
    387,026.15/534,174.70 = 223,689.60/x
  3. Step 3: Cross multiply
    387,026.15x = 534,174.70 × 223,689.60
  4. Step 4: Simplify right side
    387,026.15x = 119,489,324,833.31
  5. Step 5: Solve for x
    x = 119,489,324,833.31/387,026.15
  6. Step 6: Final answer
    x = 308,737.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.